Improvement in flour-mills



ROBERT M. THOMAS. Improvement in Hour-Mills.

Patented April 23,'1872.-

A'rnNT OFFICE.

ROBERT M. THOMAS, OF BRADY, PENNSYLVANIA.

IMPROVEMENT IN FLOUR-MILLS.

Specification forming part of Letters Patent No. 126,101, dated lApril23, 1872.

To all whom it may concern:

Be it known that I, ROBERT M. THOMAS, of Brady, county of Indiana andState of Pennsylvania, have invented an Improved Flour- Mill 5 7 and Ido hereby declare the following to be an exact description thereof,reference being had to the accompanying drawing and to the' letters ofreference marked thereon making a part of this specification, in which-Figure 1 represents a side elevation of the mill. Fig. 2 shows a sideView of the runningstone With its cross-head and gum or elastic Washers.

The nature of my invention consists in the vertical feed-hole in thestationary stone, and the elastic washers under the ends ofthec'rosshead of the running-stone.

A represents the frame of an ordinary or common portable flouring mill,supporting` common millstones B G, shaft- D, shaft-boxes E E,band-pulley G, cover H, and hopper J.

The object of myinvention is to facilitate the feeding ofthe stones withgrain by constructing the feed-hole K vertically from the circumferenceof the stationary upright stone, (commonly called the bed-stone,) sothat the feedhole carries the grain vertically downward,

and it passes out through the slightly-curved feed-hole at the center ofthe millstones B and C, as shown by the dotted lines K in the stationarystone Bof Fig. 1, thus giving a more constant and regular passage forthe grain Without choking. yielding motion of the running-stone O bymeans of the gum-elastic Washers L L L L under the en ds of thecross-head M, that supports the running-stone G, and enables it to Workwith greater accuracy, while the setting of the stone is facilitated andcorrectly adjusted by the nutsN N N N of the screw-bolts passing throughthe ends of the cross-head M into the running-stone O.

What I claim as my invention, and desire to secure by Letters Patent,isA

The bed-stone B, provided with the feedhole K, in combination with therunner O, spring-washers L L, and cross-head M, all constructed andarranged to operate substantially as herein described. v ROBERT THOMAS.

Witnesses:

JAM-Es BoVARD, J. B. MARSHALL.

Another advantage is the

